package com.xidian.zhiancloud.dao;

import com.xidian.zhiancloud.model.TrainContentKey;

/**
 * @Author chenguosong
 * @Date 2020/11/21 15:36
 * @Mail 2581592671@qq.com
 */
public interface TrainContentMapperExt {
    void deleteById(TrainContentKey trainContentKey);
}
